.header {
    height: 60px;
    width: 100vw;
    min-width: 1200px;
    transition: all .4s;
    box-shadow: 0 0 8px 0 rgba(0,0,0,.1);
    box-sizing: border-box;
    padding: 0 20px;
    position: relative;
    z-index: 99;
}
.right-menu {
    width: 200px;
}